天气预报 > 其他 > 物理一倍焦距两倍焦距如何区分
物理一倍焦距两倍焦距如何区分
更新时间: 2020-07-04 00:00:00  

物理的凸透镜成像特点为:在一倍焦距内成虚像,一倍焦距处不成像,一倍焦距到两倍焦距间成放大倒立的实像,在二倍焦距处成等大倒立的实像,在二倍焦距外成缩小倒立的实像。

根据以上凸透镜的成像特点即可区分物理的一倍焦距与二倍焦距。

关键词: 物理 焦距 如何 区分

物理一倍焦距两倍焦距如何区分相关经验

天气预报

最新推荐

页面:/news/view-3278686/ | 耗时:0.2314 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=3278686 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3278686 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3278686 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(291402,1348177,1071315,833412,2759740,1001707,621978,1339971,1104091,1112154,1118599,1074298,1070262,1117369,2216448,1070558,1125217,2013490,236004,2367665,1387967,2129163,1278491,1275376,1100396,1069557,1087775,1048002,172528,1096837) ORDER BY field (ArticleID,291402,1348177,1071315,833412,2759740,1001707,621978,1339971,1104091,1112154,1118599,1074298,1070262,1117369,2216448,1070558,1125217,2013490,236004,2367665,1387967,2129163,1278491,1275376,1100396,1069557,1087775,1048002,172528,1096837)